Terry J. Reedy <[email protected]> added the comment:
I ran your tkinter code on Windows, without IDLE, and the clipboard was clear
thereafter. I added 'test.mainloop()' and observed the following.
1. Close immediately, clipboard is clear, as before.
2. Paste 'Testing again' into 'text' with ^V and close, and clipboard is still
clear.
3. Paste elsewhere (here, Command Prompt, or IDLE), close, and 'Testing again'
can be pasted anywhere.
4. When I run from an IDLE editor, paste into the editor (which in running in
the IDLE process rather than the user process where the test code is running,
and close, 'Testing again' remains on the clipboard.
It appears that either a. tkinter clear the clipboard unless pasted into
another process, or b. tkinter (or tk) always clears the clipboard on exit and
it is gone unless pulled out of the process first by pasting elsewhere. The
best option is for this to be fixed.
The example codes are not quite equivalent. Tkinter clipboard_clear and
_append call self.tk.call with the equivalent arguments *plus*,
self._options({'displayof':text._w}) == ('-displayof', '.!text')
However, commenting out the addition had no visible effect.
----------
components: +Tkinter
stage: patch review -> needs patch
title: IDLE: preserve clipboard on closure -> Tkinter/IDLE: preserve clipboard
on closure
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Python tracker <[email protected]>
<https://bugs.python.org/issue40452>
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